static couchstore_error_t open_view_group_file(const char *path,
couchstore_open_flags open_flags,
tree_file *file)
{
couchstore_error_t ret;
const couch_file_ops *file_ops = couchstore_get_default_file_ops();
int flags = 0;
if ((open_flags & COUCHSTORE_OPEN_FLAG_RDONLY) &&
(open_flags & COUCHSTORE_OPEN_FLAG_CREATE)) {
return COUCHSTORE_ERROR_INVALID_ARGUMENTS;
}
if (open_flags & COUCHSTORE_OPEN_FLAG_RDONLY) {
flags |= O_RDONLY;
} else {
flags |= O_RDWR;
}
if (open_flags & COUCHSTORE_OPEN_FLAG_CREATE) {
flags |= O_CREAT;
}
ret = tree_file_open(file, path, flags, file_ops);
return ret;
}
LIBCOUCHSTORE_API
couchstore_error_t couchstore_open_db_ex(const char *filename,
couchstore_open_flags flags,
const couch_file_ops *ops,
Db **pDb)
{
couchstore_error_t errcode = COUCHSTORE_SUCCESS;
Db *db;
int openflags;
/* Sanity check input parameters */
if ((flags & COUCHSTORE_OPEN_FLAG_RDONLY) &&
(flags & COUCHSTORE_OPEN_FLAG_CREATE)) {
return COUCHSTORE_ERROR_INVALID_ARGUMENTS;
}
if ((db = calloc(1, sizeof(Db))) == NULL) {
return COUCHSTORE_ERROR_ALLOC_FAIL;
}
if (flags & COUCHSTORE_OPEN_FLAG_RDONLY) {
openflags = O_RDONLY;
} else {
openflags = O_RDWR;
}
if (flags & COUCHSTORE_OPEN_FLAG_CREATE) {
openflags |= O_CREAT;
}
error_pass(tree_file_open(&db->file, filename, openflags, ops));
if ((db->file.pos = db->file.ops->goto_eof(db->file.handle)) == 0) {
/* This is an empty file. Create a new fileheader unless the
* user wanted a read-only version of the file
*/
if (flags & COUCHSTORE_OPEN_FLAG_RDONLY) {
error_pass(COUCHSTORE_ERROR_NO_HEADER);
} else {
error_pass(create_header(db));
}
} else {
error_pass(find_header(db));
}
*pDb = db;
return COUCHSTORE_SUCCESS;
cleanup:
couchstore_close_db(db);
return errcode;
}
